{
    "name":"罗敏",
    "age":38,
    "qq":993642192,
    "friends":["王大锤", "李元芳"],
    "cars":[
        {"brand": "BYD", "max_speed": 180},
        {"brand": "Audi", "max_speed": 280},
        {"brand": "Benz", "max_speed": 320}
    ]
}